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(No Model.) .4, Sheets-Sheet 1 L. GIS MONDI. OIL PRESS.

'No. 400,328. Patented Mar. 26, 1889 4 Sheets-Sheet 2.

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(No Model L. GISMONDI.

OIL PRESS No. 400,328. Patented Mar. 26,1889.

(No-Model.)

L. GISMONDI. .OIL PRESS.

N0; 400,328. Patented Mar. 26, 1889.

4 Sheets-Sheet 3.

(No Model.) 4 Sheets-Sheet 4.

L. GISMONDI.

OIL PRESS.

No. 400,328. Patented Mar. 26, 1889.

N PETERS, Fholcrl-ilhognpher. Waahingivn. D. C.

UNITED STATES PATENT OFFICE.

LOUIS GISMONDI, OF MARSEILLES, FRANCE.

OIL-PRESS.

SPECIFICATION formingpart of Letters Patent No. 400,328, dated March 26, 1889.

Application filed April 12-, 1888.

- T0. aZZ whom it may concern.-

Be it known that I, LOUIS GISMONDI, a citi-' simple press of great power, constructed upon the principle involved in the construction of letter-presses; and the invention consists in the combination of a plurality of telescopic holders with a press constructed substantially like a letter-press, in certain structural features of the telescopic holders, and in combination therewith of a bottom or base plate and a foraminous mat, and in other minor details of construction andcombinations of parts, substantially as hereinafter fully described, and specifically set forth in the claims.

Referring to the drawings, Figure 1 is an elevation of my improved oil-press. Fig. l is a vertical transverse section of Fig. 1, the yokeor frame-standards and part of the bedplate and power-screw being broken away. Fig. 2 is a like view of one of the meal-holders expanded or drawn out, and Fig. 3 is a vertical section of the same, also showing the bottom plates and the interposed fabric. Fig. & is a view similar to that shown in Fig. 3, illustrating the meal-holder in its collapsed or telescoped state; and Fig. 5 is a top plan view of one of the meal-holders and the bottom plate therefor.

As shown in the drawings, the press itself is constructed substantially like an ordinary letter-press, in which B is the bed-plate, to which is secured the yoke Y, that has a screwthreaded bearing, y, in which works the screw S, that carries the hand-wheel ,W at one end and at the other end a platen, P, that has guide-bars 19 secured thereto, which-bars ride on the standards y of the yoke Y, to steady the platen and guide the same in its movements.

To the platen P are pivoted locking bars or Serial No. 270,509. (No model.)

links L, adapted to engage one of the mealholders, and to the removable channeled bottom plate, B, for the lower meal-holder, are pivotally connected locking-dogs D, to lock said meal-holder to the channeled bottom plate. The ordinary press bags and squeezers are here dispensed with and a meal-holder of novel construction employed in their stead.

The meal-holder is composed of a series of annular metallic rings, R R R of graduallydecreasing diameter, so as to fit one within the other and form a nest of rings. Each of said rings is provided at its upper edge with an annular inwardly-projecting flange, 1", except the upper ring, R, which is provided with an. outer peripheral groove, 0", instead of an inner peripheral flange, 1". Each of the rings is also provided at its lower edge with an outer peripheral flange, T the flange of the lower ring, B, being made wider than the flange of intermediate rings, R and upper ring, B.

As stated above, locking-dogs D are pivotally connected with the transversely-channeled and removable bottom plate, B, of the lower mealholder, whereby the two are con nected together, the channels 19 of said plate B serving to discharge the oil expressed into a suitable receiver. Upon this bottom plate is laid a perforated plate, P, to allow the oil expressed from the meal to flow to the channels b, and on said perforated plate is laid a mat, M, of horse-hair fabric or other foraminous mat, to allow the oil to percolate through -and prevent the meal from choking up the perforations in the plate P, the mat M fitting within the lower or outer ring, R, of the set.

The inner peripheral flange, r, of the rings engages the outer flange, 0*, thereof to limit the movement of said rings outwardly, the lower edge of all the rings, except the lower ring, B, being beveled outwardly to form a hollow cone when said rings are telescoped, as shown in Fig. 4.

To the outer flange, "r of thelarger ring, R, of each meal-holder are pivoted locking-dogs D, the noses of which engage with the annular peripheral groove 'r of the upper or smaller of the rings, and said dogs or links serve to hold the rings in their expanded or drawn-out position for filling the holder with meal.

The noses of the locking bars or links L, pivoted to the platen P, also engage with the groove '2" of the said ring R. In the under side of the channeled bottom plate, B, of the holders is formed an annular groove, U, for the reception of the upper edge of the inner or smaller ring, R, when the holders are stacked up, and within said ring is formed an annular oltset or shoulder, 0' for a hopper ring, R, which is inserted when the holders are beingfilled with meal to prevent the spilling of the meal during the operation of filling and during the operation of compacting the charge. After the holder has been filled with the meal an d the charge is properly compacted the links or dogs I) may be disengaged from the ring R and turned down, the charge of meal preventing the rings from telescoping.

The operation of the press is as follows: A charged meal-holder is placed upon the plate B of the press under the platen. A second holder is now placed upon the first one, the upper edge of the smaller inner ring of the first lying in the annular groove b of the bottom plate, B, of the second holder, and so on until the space below the platen P on the screw is filled, twenty, or more, or less, of these holders being or may be used. The platen P is or may also be provided with an annular groove for the reception of the upper edge of the inner ring, R, of the-upper or last one of the holders, and when said platen has been lowered upon the last holder the locking bars or links L are brought into engagement with the outer peripheral groove, r, of the ring R of the lowermost holder to prevent lateral displacement of the holders stacked up in the press. The screw S is now manipulated, and as pressure is applied the holder-rings telescope while the oil expressed from the charge of each holder percolates through the mat M thereof, thence passes through the perforated plate 1?, and flows out along the channels or grooves in the bottom plate, B, of each holder into a suitable receptacle.

By means of the described construction of press great power can be exerted with comparatively little exertion, as is well known, while, on the other hand, a press of very compact form, which may be operated from any suitable prime motor or by hand, is produced.

The holders may, as shown in Fig. 1, decrease successively in diameter, so as to form a stack having the form of a truncated cone; and although I prefer this arrangement I do not desire to limit myself thereto; nor do I wish to limit the use of the press to the ex pression of oil from seeds, as it may be used either for compressing only or for the purposes of expressing other juices than oleaginous juices as, for instance, for expressing the juice from fruits; nor is it necessary that the telescopic holders should be composed of cylindrical elements. These elements may have another form in cross-section accordin J #3 to the uses made of the press and the nature of the material operated upon. The foraminous mats may be dispensed with, and in some cases both the foraminous mat and plate P, as well as the impermeable channeled bottom plate, I3, for all. the other holders, eX- cept the lower one,- may be dispensed with, and the various holders be connected in any convenient manner.

Vhen the press is employed for the ex pression of juices containing an acid, the parts with which the juices come in contact will of course be made of or protected by a material not aitected by the acid.

Having thus described my invention, whatI claim, and desire to secure by Letters Patent,

1. In a press of the class described, a holder composed of a plurality of telescopic elements provided with a flange at their upper and lower edges, the flange at the upper edge of one element interlocking with the flange at the lower edge of the elem out next above, sub stantially as and for the purposes specified.

2. In a press of the class described, a holder composed of a plurality of telescopic elements, the lower or inner edge of which is beveled, whereby when said elements are tel escoped such inner edges will form a hollow truncated cone, substantially as and for the purpose specified.

3. In apress of. the class described, the combination of a power-screw and a platen or follower with a plurality of superposed holders for the material operated upon, each composed of a set of interlocking telescopic elements, and an impermeable channeled plate interposed between each two holders, substantially as and for the purpose specified.

4. In a press of the class described, the combination of a power-screw and a platen or follower with a plurality of superposed holders for the material operated upon, each composed of a set of interlocking telescopic elements, and a locking device for locking the inner or smaller element of the lower holder to the platen,substantially as and for the purpose specified.

5. In a press of the class described, the combination of a power-screw and a platen or follower with a plurality of superposed telescopic holders for the material to be operated upon, a locking device for locking the lowermost holder to the bed-plate of the press, and a locking device for locking the inner or smaller element of said lowermost holder to the platen,whereby all the superposed holders are locked to said platen, substantially as described.

6. In a press of the class described, the combination, with a plurality of superposed holders for the material operated upon, each composed of a set of interlocking telescopic elements, of a bottom plate for each holder, said bottom plate having its upper face chann eled, and having a groove formed in its under side for the reception of the upper edge of the smaller element of the holder below it, substantially as and for the purposes specified.

7. In a press of the class described, the combination, of a power-screw and a platen with a plurality of superposed holders, plate or bottom for each holder having a channeled upper surface, and a groove formed in the lower face for the reception of the upper edge of the smaller element of the next holder below to lock the holders together, a locking device to lock the plate of the lower holder to the bedplate of the press, and a locking device to lock the smaller element of said lower holder to the platen, substantially as and for the purpose specified.

S. Inapress of the class described, a telescopic holder for the material to be operated upon, in combination with a bottom for said holder, and st y-rods connected With said bottom and adapted to engage the smaller elef ment of the telescopic sections of the holder to hold the same drawn out, substantially as deszribed.

9. In a press of the class described, a telescopic holder for the material to be operated upon, in combination with a detachable bottom for such holder, having its upper face channeled, a foraminous plate interposed between the two, and a foraminous mat arranged upon the foraminous plate and within the holder, substantially as and for the purposes specified.

10. The herein-described hand-press, comprising aframe of the form of a letter-press, a power-screw carrying a hand-wheel at one end and a platen at the other, and a plurality of telescopic holders for the material to be operated upon, said holders being arranged one upon the other between the bed-plate and platen, and an impermeable dividingplate between each two holders, having its upper face channeled, and a groove formed in the lower face thereof, into which fits the upper edge of the inner or smaller element of a telescopic section, substantially as and for the purpose specified.

In testimonythat I claim the foregoing I have hereunto set my hand this 8th day of February, 1888.

LOUIS GISMONDI.

Witnesses:

FREDERIO MATRAY, VIoToR MATRAY. 

